Period
to 21 July 2017

The median contractor rate for a Senior Developer was £550 per day in advertised job vacancies in Hertfordshire during the 6 months to 21 July 2017.

The first table below provides contractor rate benchmarking and summary statistics including a comparison to same period in the previous 2 years.

Note that daily and hourly rates are treated separately in these statistics. When calculating contractor rate percentiles, daily rates are never derived from quoted hourly rates or vice versa.

Senior Developer
East of England > Hertfordshire
6 months to
21 Jul 2017
Same period 2016 Same period 2015
Rank 62 68 76
Rank change year-on-year +6 +8 +1
Contract jobs requiring a Senior Developer 27 15 31
As % of all contract IT jobs advertised in Hertfordshire 2.10% 1.07% 1.91%
As % of the Job Titles category 2.25% 1.12% 2.04%
Number of daily rates quoted 27 9 22
Hertfordshire median daily rate £550 £465 £475
Median daily rate % change year-on-year +18.28% -2.11% +29.25%
10th Percentile £263 £413 £364
90th Percentile £613 £523 £500
East of England median daily rate £500 £438 £450
% change year-on-year +14.29% -2.78% +20.00%
Number of hourly rates quoted 0 0 0
Hertfordshire median hourly rate - - -
East of England median hourly rate - - £44.00

The next table is for comparison with the above and includes summary statistics for all job roles in contract job vacancies advertised in Hertfordshire. Most job vacancies include a discernible job title. As such, the figures in the first row provide an indication of the number of contract jobs in our overall sample.

Contract IT Job Roles
Hertfordshire
Contract job vacancies with a job title containing a recognized job role 1201 1343 1516
As % of all contract IT job vacancies advertised in Hertfordshire 93.54% 96.00% 93.46%
Number of daily rates quoted 632 700 784
Hertfordshire median daily rate £400 £400 £381
Median daily rate % change year-on-year - +5.12% +4.25%
10th Percentile £200 £213 £213
90th Percentile £586 £538 £525
East of England median daily rate £405 £400 £375
% change year-on-year +1.25% +6.67% -
Number of hourly rates quoted 119 74 134
Hertfordshire median hourly rate £15.50 £16.00 £17.50
Median hourly rate % change year-on-year -3.13% -8.57% +7.36%
10th Percentile £10.48 £9.00 £9.34
90th Percentile £48.12 £52.25 £39.70
East of England median hourly rate £17.50 £20.00 £20.00
% change year-on-year -12.50% - -4.76%

Senior Developer
Job Vacancy Trend in Hertfordshire

Job postings that featured Senior Developer in the job title as a percentage of all IT jobs advertised in Hertfordshire.

Job vacancy trend for Senior Developer in Hertfordshire

Senior Developer
Contractor Daily Rate Trend in Hertfordshire

This chart provides the 3-month moving average for daily rates quoted in contract jobs citing Senior Developer in Hertfordshire.

Contractor daily rate trend for Senior Developer in Hertfordshire

Senior Developer
Contractor Daily Rate Histogram in Hertfordshire

The daily rate distribution of IT jobs citing Senior Developer in Hertfordshire over the 6 months to 21 July 2017.

Contractor daily rate histogram for Senior Developer in Hertfordshire

Senior Developer
Contractor Hourly Rate Trend in Hertfordshire

This chart provides the 3-month moving average for contractor hourly rates quoted in IT jobs citing Senior Developer in Hertfordshire.

Contractor hourly rate trend for Senior Developer in Hertfordshire

Senior Developer
Contract Job Locations in Hertfordshire

The table below looks at the demand and provides a guide to the median contractor rates quoted in IT jobs citing Senior Developer within the Hertfordshire region over the 6 months to 21 July 2017. The 'Rank Change' column provides an indication of the change in demand within each location based on the same 6 month period last year.

Location Rank Change
on Same Period
Last Year
Matching
Contract
IT Job Ads
Median
Daily Rate
Past 6 Months
Median Daily Rate
% Change
on Same Period
Last Year
Live
Job
Vacancies
Hatfield - 8 £550 -
Watford -7 5 £275 -40.86% 1
Borehamwood - 2 £275 - 1
Senior Developer
East of England

Senior Developer Skill Set
Top 30 Co-occurring IT Skills in Hertfordshire

For the 6 months to 21 July 2017, Senior Developer contract jobs required the following IT skills in order of popularity. The figures indicate the number co-occurrences and its proportion to all contract ads across the Hertfordshire region featuring Senior Developer in the job title.

1 20 (74.07%) Agile Software Development
1 20 (74.07%) Java
2 19 (70.37%) TDD
3 10 (37.04%) E-Commerce
4 9 (33.33%) NoSQL
5 8 (29.63%) Microservices
5 8 (29.63%) BDD
5 8 (29.63%) Spring
6 7 (25.93%) Scrum
6 7 (25.93%) Unix
6 7 (25.93%) Linux
6 7 (25.93%) OO
6 7 (25.93%) Open Source
6 7 (25.93%) Apache Cassandra
6 7 (25.93%) Mentoring
6 7 (25.93%) DevOps
6 7 (25.93%) Service Design
7 5 (18.52%) AngularJS
7 5 (18.52%) Opscode Chef
7 5 (18.52%) HTML5
7 5 (18.52%) Puppet
7 5 (18.52%) Big Data
7 5 (18.52%) HTML
7 5 (18.52%) Client/Server
7 5 (18.52%) SQL
8 4 (14.81%) JavaScript
9 3 (11.11%) CSS
9 3 (11.11%) Scala
9 3 (11.11%) Qlik Sense
10 2 (7.41%) Front End Development

Senior Developer Skill Set
Co-occurring IT Skills in Hertfordshire by Category

The follow tables expand on the table above by listing co-occurrences grouped by category. The same job type, locality and period is covered with up to 20 co-occurrences shown in each of the following categories:

Application Platforms
1 1 (3.70%) Apache Solr
1 1 (3.70%) Apache Spark
1 1 (3.70%) Elasticsearch
Business Applications
1 1 (3.70%) Payment Gateway
Database & Business Intelligence
1 9 (33.33%) NoSQL
2 7 (25.93%) Apache Cassandra
3 5 (18.52%) Big Data
4 3 (11.11%) Qlik Sense
5 1 (3.70%) Data Warehouse
5 1 (3.70%) Hadoop
5 1 (3.70%) QlikView
5 1 (3.70%) SQL Server
Development Applications
1 2 (7.41%) Git (software)
2 1 (3.70%) Babel
2 1 (3.70%) webpack
General
1 2 (7.41%) Games
1 2 (7.41%) Law
Libraries, Frameworks & Software Standards
1 8 (29.63%) Spring
2 5 (18.52%) AngularJS
2 5 (18.52%) HTML
2 5 (18.52%) HTML5
3 3 (11.11%) CSS
4 2 (7.41%) Node.js
4 2 (7.41%) RxJava
4 2 (7.41%) Sass
5 1 (3.70%) Angular 2
5 1 (3.70%) Backbone.js
5 1 (3.70%) CSS3
5 1 (3.70%) Kafka
5 1 (3.70%) LESS
5 1 (3.70%) React
5 1 (3.70%) REST
5 1 (3.70%) Twitter Bootstrap
Miscellaneous
1 5 (18.52%) Client/Server
2 2 (7.41%) Computer Science
3 1 (3.70%) Greenfield Project
3 1 (3.70%) User Experience
Operating Systems
1 7 (25.93%) Linux
1 7 (25.93%) Unix
Processes & Methodologies
1 20 (74.07%) Agile Software Development
2 19 (70.37%) TDD
3 10 (37.04%) E-Commerce
4 8 (29.63%) BDD
4 8 (29.63%) Microservices
5 7 (25.93%) DevOps
5 7 (25.93%) Mentoring
5 7 (25.93%) OO
5 7 (25.93%) Open Source
5 7 (25.93%) Scrum
5 7 (25.93%) Service Design
6 2 (7.41%) BEM - Block Element Modifier
6 2 (7.41%) Data Modelling
6 2 (7.41%) Front End Development
6 2 (7.41%) Multithreading
6 2 (7.41%) Software Engineering
7 1 (3.70%) Customer Requirements
7 1 (3.70%) ETL
7 1 (3.70%) Machine Learning
7 1 (3.70%) Physical Data Model
Programming Languages
1 20 (74.07%) Java
2 5 (18.52%) SQL
3 4 (14.81%) JavaScript
4 3 (11.11%) Scala
5 2 (7.41%) C++
5 2 (7.41%) Groovy
6 1 (3.70%) ES6
Qualifications
1 2 (7.41%) Computer Science Degree
1 2 (7.41%) Degree
Systems Management
1 5 (18.52%) Opscode Chef
1 5 (18.52%) Puppet
Vendors
1 2 (7.41%) Teradata